Vertical storage unit



FIG. 1 is a perspective view of a vertical storage unit showing our new design, the portion in phantom not being part of our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view of one side thereof, the other side elevational view being a mirror image thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for the vertical storage unit, as shown and described. 